An Illustrated and Cross-Referenced Glossary of
Malacological and Conchological Terms

by Paul S. Mikkelsen

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Term Definition

ANTERODORSAL   Being both forward and upward; toward the front and upper regions.

DORSAL   Of, pertaining to, or situated on the back or upper surface; in bivalves, at or toward the HINGE; see also: VENTRAL.

PAPILLAE, DORSAL   [need definition]. In NUDIBRANCHS See illustration: Composite Nudibranch.

POSTERODORSAL MARGIN   In bivalves, the margin of the DORSAL part of the shell POSTERIOR to the BEAKS.

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